Synthesis of four coordinated platinum complexes and their applications in light emitting devices thereof

Abstract

Platinum complexes that exhibit photoabsorption and photoemission, methods of making such complexes, and applications thereof are disclosed, including optical devices comprising the complexes.

What is claimed is: 
     
       1. A compound represented by the formula: 
       
         
           
           
               
               
           
         
         wherein: 
         each R 1  in (R 1 ) 2  independently represents hydrogen, halogen, hydroxyl, amino, nitro, thiol, or optionally substituted C 1 -C 4  alkyl; 
         each R 2  in (R 2 ) 2  independently represents hydrogen, hydroxyl, amino, nitro, thiol, or optionally substituted C 1 -C 4  alkyl; 
         Y 1a  represents O, S, NR 4a , wherein R 4a  represents optionally substituted C 1 -C 4  alkyl; Si(R 4b ) 2 , wherein each R 4b  in (R 4b ) 2  independently represents optionally substituted C 1 -C 4  alkyl; 
         n is 1; 
         Y 1b  represents O, S, NR 5a , wherein R 5a  represents optionally substituted C 1 -C 4  alkyl; Si(R 5b ) 2 , wherein each R 5b  in (R 5b ) 2  independently represents optionally substituted C 1 -C 4  alkyl; or C(R 5c ) 2 , wherein each R 5c  in (R 5c ) 2  represents hydrogen or optionally substituted C 1 -C 4  alkyl; 
         each of Y 2a , Y 2b , Y 2c , and Y 2d  independently represents N, NR 6a , C, or CR 6b , wherein each of R 6a  and R 6b  independently represents hydrogen, optionally substituted C 1 -C 4  alkyl; 
         each of Y 3a , Y 3b , Y 3c , Y 3d , Y 3e , Y 4a , Y 4b , Y  4c , and Y 4d independently represents N, NR 6a , C, or CR 6b , wherein each of R 6a  and R 6b  independently represents hydrogen or optionally substituted C 1 -C 4  alkyl; or Z(R 6c ) 2 , wherein Z is C or Si, and wherein each R 6c  in (R 6c ) 2  independently represents hydrogen or optionally substituted C 1 -C 4  alkyl; 
         m is 1 or 2; 
         the open dotted circle 
       
       
         
           
           
               
               
           
         
       
       indicates partial or full unsaturation of the ring with which it is associated; and
 the optional substituents for each C 1 -C 4  are selected from the group consisting of alkyl, cycloalkyl, alkoxy, amino, ether, halide, hydroxyl, nitro, silyl, sulfo-oxo, and thiol, 
 provided that if m is 1, each of Y 2a and Y 2d  is CH and each of Y 2b  and Y 2c  is N, then at least one of Y 4a , Y 4b , Y 3a , or Y 3d  is not N. 
 
     
     
       2. The compound of  claim 1 , which is represented by the formula: 
       
         
           
           
               
               
           
         
       
     
     
       3. An organic light-emitting diode (OLED) comprising the compound of  claim 1 . 
     
     
       4. An organic light-emitting diode (OLED) comprising, as an emissive material, a compound represented by the formula of  claim 1 . 
     
     
       5. An organic photovoltaic device comprising the compound of  claim 1 . 
     
     
       6. An organic photovoltaic device comprising, as a donor or acceptor material, a compound represented by the formula of  claim 1 . 
     
     
       7. A method for manufacturing an electronic device, the method comprising providing a layer comprising the compound of  claim 1 , and then positioning the layer in the device. 
     
     
       8. The method of  claim 7 , wherein the layer is an emissive layer. 
     
     
       9. The method of  claim 7 , wherein the layer is an absorbing layer. 
     
     
       10. The method of  claim 7 , wherein the electronic device comprises a light emitting device. 
     
     
       11. The method of  claim 7 , wherein the electronic device comprises an organic light emitting diode. 
     
     
       12. The method of  claim 7 , wherein the electronic device comprises a photovoltaic device.